Description on Box: "The processor is turned by a handle in its stand.Unique system of agitaion gives even and consistent results. One shot process uses 4 ounces of solution. Holds one 11 x 14 print or two 5 x 7 prints or several test strips. Easily dismantled for cleaning."

It comes in original box but no instruction manual.

Not sure if there is meant to be a plastic drum in centre but doesn't have one